Ulfgar the Unending was a Nord warrior from the Second Era. He and four companions embarked on a quest to find Sovngarde. However, his companions Nikulas, Erlendr, and Hunroor were betrayed by the wizard Grimkell, who turned them into stone pillars at Brodir Grove on Solstheim. They were avenged by Ulfgar, who killed the wizard. Five hundred years later, Ulfgar was somehow still alive, and still searching for Sovngarde. In 3E 427, he met the Nerevarine, who agreed to help him find the Nordic paradise. Upon investigating, the Nerevarine informed the ancient Nord that the only way to reach Sovngarde is to die an honorable death in combat. Ulfgar challenged the Nerevarine, hoping to meet such a fate. The Nerevarine accepted his challenge, and the two engaged in mortal combat. In the end, a fourth pillar appeared at Brodir Grove, and Ulfgar met his old friends in Sovngarde. For more information, see the lore article.

Ulliceta was from the Kogg Clan of Orcs, but was later inducted into the Psijic Order around 2E 503. She was forced to abandon her previous life in favor of the Old Ways, which is the central focus of the Psijic Order. Ulliceta gra-Kogg would study at the Psijic Order for many years, gaining a reputation among her teachers, being called Adma'na, which is "poor listener" in the Altmer Language. Around 2E 583, Ulliceta had uncovered the Eye of Rememberance and decided to traverse the Traitor's Vault, which was formerly Mannimarco's laboratory during his time on Artaeum. Ulliceta and an associate of the Psijic Order explored the ruins, uncovering Mannimarco and Vanus Galerion's early history and rivalry. However, Ulliceta was caught by the Relicmaster, Glenadir. This resulted in Ulliceta's banishment from the Psijic Order. She would later relocate to the newly-built second Orsinium, where she remained at the Temple of Ire.

Ulliceta gra-Kogg quickly joined the local Mages Guild and eventually became the Magister of the Mages Guild at Nova Orsinium. Ulliceta was at the forefront of defending the use of Necromancy against Voth Karlyss, the Magister of Corinthe. In the end, Arch-Mage Hannibal Traven banned guild mages from practising the Black Arts at the end of the Third Era. It was revealed that not only was Ulliceta an apologist of Necromancy, but a practitioner; when the Order of the Lamp attempted to apprehend her, she was able to escape their clutches. Ulliceta's argument in favor of Necromancy was documented in The Black Arts On Trial, as Traven felt it was worthy of inclusion. Her ultimate fate is unknown.

Umaril the Unfeathered was an Ayleid sorcerer-king who once ruled Tamriel and enslaved the human population. Umaril was a "half-Elf", born of an Ayleid mother and a divine father. His alliance with Meridia granted him immortality: upon death, his spiritual form would live on and inevitably return. Thus, Umaril would "never know death". Umaril appeared similar to Meridia's Daedric servants, the Aurorans, though much larger. He favored "ruin-from-afar", preferring to send minions to attack and weaken his foes before he would risk direct combat.

Umaril was defeated by Pelinal Whitestrake at the start of the First Era during the human uprising against the Ayleids, their "Slavemasters", and the fall of the White-Gold Tower. While Umaril escaped death, he was cast adrift in the "waters of Oblivion", and many thousands of years passed before he could return to Mundus. His return at the end of the Third Era was to seek vengeance upon the Divines who had brought about his fall. Aurorans under his command desecrated the chapel of Dibella in Anvil, and later the chapel of Mara in Bravil. He was finally defeated by the Divine Crusader before his plans could come to fruition.[2]

The Underking was the "old bugbear" of fairy tales dating back to the earliest years of the Septim dynasty. Some tales described him as a very old, very powerful lich—or at least, something resembling one. Others claimed he was an Archmage; in life, the most powerful mage who ever lived. Somehow, this mage "lost his heart" and his very being was transformed. The mage's heart "disappeared", and without it, the Underking could not truly live or die.

The stories were largely true, though the Underking's identity remains a matter of dispute. Most sources (notably, the Underking himself) claim he was once Zurin Arctus, Battlemage of Emperor Tiber Septim. As the Underking, Arctus has been associated with the et'AdaMagnus, the god of magic. However, according to The Arcturian Heresy the Underking was Ysmir Wulfharth, a supernatural being said to have lived many lives, and who was an ally of Tiber Septim. Among Wulfharth's numerous purported titles was "Underking". To further complicate matters, there is also a belief that the Underking was none other than Tiber Septim himself.

Son of Empress Kintyra, Uriel I became the fourth Emperor of Tamriel after his mother's death in 3E 48. Uriel was the first of several emperors to use the name Uriel. He was the great lawmaker of the Septim Dynasty, and a promoter of independent organizations and guilds. The Fighters Guild and the Mages Guild increased in prominence throughout Tamriel during his reign. His son Uriel Septim II assumed the throne upon his death.[3] The level of Tamrielic unity he fostered would not be seen again until the days of Emperor Pelagius Septim IV.[1]

Uriel Septim II became the fifth Emperor of Tamriel after the death of Uriel I in 3E 64. Tragically, the rule of Uriel II was cursed with blights, plagues, and insurrections the likes of which wouldn't be seen again until the reign of his grandson Emperor Antiochus. His tenderheartedness inherited from his father did not serve Tamriel well, and little justice was done. Uriel II died in 3E 82 after 18 years of rule and was succeeded by his son, Pelagius II, to whom he left many problems due to his poor financial and judicial management.[3] He was a character in the popular historical fiction The Wolf Queen.

Uriel Septim III is the first cousin of Empress Kintyra II and son of Queen Potema of Solitude. Uriel III accused Kintyra of being a bastard, alluding to the famous decadence of the Imperial City during her father's reign. When this accusation failed to stop her coronation, Uriel bought the support of several disgruntled kings of High Rock, Skyrim, and Morrowind, and, with Queen Potema's assistance, coordinated three attacks on the Septim Empire. The first attack occurred in the Iliac Bay that separates High Rock and Hammerfell. Kintyra II's entourage was destroyed and the Empress was taken captive. Uriel III supposedly later killed Kintyra II in 3E 114.[3]

Uriel III was eventually proclaimed Emperor of Tamriel in 3E 121. Empress Kintyra II later died in captivity. In the third major and final attack against the Imperial City itself was relatively quick taking only a fortnight to secure.[3] He named himself Uriel Septim III, even though his true name was Uriel Mantiarco from his father. Uriel III was captured at the Battle of Ichidag in Hammerfell in 3E 127. En route to his trial in the Imperial City, a mob overtook his carriage and burned him alive within it.[4] In Skyrim during the late Third Era, there was an strong underground movement called the Hörme which believed Potema and her deposed son were the last of Tiber Septim's true blood and under that principle led raids against Imperial interests in the province.[5] More details of his life can be found in Biography of the Wolf Queen. Also, he was a character in the popular historical fiction The Wolf Queen.

Uriel Lariat was the child of Empress Katariah and her Imperial consort, a Breton nobleman named Gallivere Lariat.[6] He left Wayrest in 3E 202 to reign as Uriel IV upon the death of his half-brother Cassynder. Legally, Uriel IV was a Septim: Cassynder Septim had adopted him into the family, when he had become King of Wayrest. Nevertheless, to the Council and the people of Tamriel, he was a bastard child of Empress Katariah. Uriel did not possess the dynamism of his mother, and his long forty-three year reign was a hotbed of sedition.[4] Uriel IV's reign was a difficult and long one. Few of the Elder Council could be persuaded to accept him fully as a blood relation of Tiber. The Council had assumed much responsibility during Katariah I's long reign and Cassynder I's short reign, and a strong-willed alien monarch like Uriel IV found it impossible to hold their unswerving fealty. Time and time again, the Council and Emperor were at odds; and time and time again, the Council won the battles. Since the days of Pelagius II, the Elder Council had consisted of the wealthiest men and women in the Empire, and the power they wielded was overpowering.[6] Uriel IV died in 3E 247 with the throne going to a cousin more closely related to Tiber Septim, his cousin Cephorus II.[6][7] During his reign in 3E 246, the Elder Council, in an attempt to clear up some questions of property rights in Skyrim and discourage absent and foreign landlords, decreed that any man without a liege who occupied a castle for more than three months would be granted the rights and titles of that estate.[8]

Uriel V was crowned Emperor in 3E 268 and turned opinion back toward the potential power of the Empire. Turning the attention of Tamriel away from internal strife, Uriel V embarked on a series of invasions. In 3E 271, he conquered Roscrea, which would remain under the Emperor's direct control until the late Third Era, when it was annexed by Solitude.[6][5] In 3E 276, Cathnoquey was conquered; in 3E 279Yneslea; and in 3E 284Esroniet was conquered.[6] The Emperor is said to have been influenced in these early years by the Psijic Order.[9]

In 3E 288, Uriel V invaded Akavir, which was ultimately a failure. He was killed in Akavir in 3E 290 on the battlefield of Ionith. Nevertheless, Uriel V holds a reputation second only to Tiber Septim as the great warrior emperor of Tamriel.[6] Uriel V was succeeded by his son, Uriel VI.[1] Despite his ultimate failure, his many successes along the way earned him a reputation as a military genius.[10] He employed a battlemage named Hethoth who fought in Akavir, though he was never formally appointed as Imperial Battlemage.[11] Details of his defeat in Akavir can be found in Disaster at Ionith.

Uriel VI was crowned when his father, Uriel V, was killed in Akavir on the battlefield of Ionith in 3E 290 when Uriel VI was but five years old. In fact, Uriel VI was born only shortly before his father left for Akavir. Uriel V's only other progeny, by a different woman, were the twins Morihatha and Eloisa, who had been born a month after Uriel V left. The consort Thonica as the boy's mother was given a restricted Regency until Uriel VI reached maturity. The Elder Council retained the real power, as they had ever since the days of Katariah I. The Council so enjoyed its unlimited and unrestricted freedom to make laws (and profits), Uriel VI was not given full license to rule until 3E 307, when he was 22 years old. He had been slowly assuming positions of responsibility for years, but both the Council and his mother, who enjoyed even her limited regency, were loath to give him reign. By the time he came to the throne, the mechanisms of government gave him little power, but the power to veto.[1]

Uriel VI's power to veto was regularly exercised, and by 3E 313, he could boast with conviction that he truly did rule Tamriel. He utilized defunct spy networks and guard units to bully and coerce the difficult members of the Elder Council. Morihatha became his staunchest ally, after her marriage to Baron Ulfe Gersen of Winterhold brought her considerable wealth and influence. However, Uriel VI died in 3E 313 when he fell from his horse and could not be saved by the finest Imperial healers, leaving Morihatha to take the throne.[1]

When Pelagius IV died in 3E 368 after an astonishing twenty-nine year reign, Tamriel was closer to unity than it had been since the days of Uriel I. His son, Uriel VII, succeeded him. He had the diligence of his grand-aunt Morihatha, the political skill of his grand-uncle Uriel VI, and the military prowess of his great-grandfather Uriel V. For sixty-five years he reigned and brought justice and order to Tamriel.

Uriel VII was betrayed by the Imperial Battlemage Jagar Tharn in 3E 389 and was imprisoned in a dimension of Tharn's choosing, that of which being Oblivion. Tharn used his magic of illusion to assume the Emperor's aspect. For the next ten years, Tharn used Imperial privileges, but did not continue Uriel VII's schedule of reconquest. It is not entirely known what Tharn's goals and personal accomplishments were during the ten years he imitated his liege lord. During Uriel VII's incarceration, Tharn slowed time so that Uriel VII would not age, because if he died the Amulet of Kings would alert the Elder Council; this may explain why Uriel VII lived and ruled for such a long period of time.

Tharn was eventually defeated in 3E 399 by the Eternal Champion, who freed Uriel VII from his other-dimensional cell. After his release, Uriel VII worked diligently to renew the battle to reunite Tamriel. Tharn's interference broke the momentum, but the following years proved that the lauded golden age of Tiber Septim could return to Tamriel once more.

On the 27th of Last Seed, 3E 433, the three heirs of Uriel VII were assassinated by the Mythic Dawn, a Daedric Cult. Shortly afterward, the Mythic Dawn assassinated Uriel VII himself. This left only an illegitimate son of Uriel VII named Martin Septim to claim the throne.

As a child, he and his siblings played with the Crown Prince Azah. Uwafa's sadism and fascination with death was evident from an early age. Circa 2E 562, his father Suturah was appointed as vizier to King Fahara'jad, and subsequently attempted to assassinate Fahara'jad by turning his other advisors into undead. Fahara'jad survived the attack, and Suturah was forced to flee into the Alik'r. With the aid of the Order of the Black Worm, he began to raise an army of undead Ra-Netu. As most Redguards refuse to strike their risen ancestors, Fahara'jad was forced to appeal to the pariah Ash'abah tribe for aid, tarnishing his reputation. The tribe slew Suturah and successfully put down the undead army.

Uwafa and Alasan were quick to follow in their father's steps. Circa 2E 578, Uwafa had joined the Order of the Black Worm and was operating in the city of Daggerfall, where he kidnapped and sacrificed innocents in the name of Mannimarco. He attempted to do the same to Flaccus Terentius, but was driven off by a stray dog. Shortly after this, he returned to Sentinel and was confronted on the docks by Flaccus. Uwafa fled, leading the Imperial deep into the city before knocking him unconscious and bringing him to an undead-infested crypt far outside the city. Uwafa branded Flaccus with the Mark of the Worm, but the ritual was interrupted by the Ash'abah, who forced him to flee. However, the branding continued to torment Flaccus for several years, eventually killing him and sending his soul to Coldharbour.

In 2E 582, Uwafa and Alasan had assembled a necromantic cult known as the Withered Hand, and openly attacked Sentinel with Ra-Netu raised from the harbor. They were driven off, but began raising more undead throughout the Alik'r after stealing the Ansei Wards. This catastrophe threatened to end Fahara'jad's rule, when he was forced to call upon the Ash'abah yet again. Uwafa himself was killed by the Soulless One at Tu'whacca's Throne, a sacred burial site. Alasan was soon to follow, forcing their sister Shiri to abandon her cover as an innocent scholar and take control of the Withered Hand. The cult's ultimate goal was realized with the raising of Suturah as a lich in Motalion Necropolis, although he was quickly banished.